AUSTIN (CBSDFW.COM/AP) — Nearly 50 Department of Public Safety offices across Texas will open on Saturdays to issue election identification certificates ahead of voting in November.

The agency announced Friday that the extended hours are only for those who need an ID in order to vote on Nov. 5. The offices will not transact any other business.

Texas will hold a referendum on proposed amendments to the Texas Constitution. It’s the first statewide election where officials will enforce a law requiring voters to produce a photo ID card to vote. To obtain a Voter ID, applicants must bring documentation that will verify U.S. citizenship, be a Texas resident and be 18 years old by the date of the election. If not, the state will furnish them. The law is under court challenge.

Election judges will accept driver’s licenses, concealed handgun licenses, U.S. passports, military IDs or naturalization certificates with a photo. Anyone who does not have one of those documents may apply for a free election ID on Saturdays thru Nov. 2. Only certain DPS offices will open from 10 a.m. to 2 p.m. on Saturdays.

No action is necessary for people who are registered to vote and already have an approved form of ID, such as a driver’s license.